That's a contradiction. first you said no heat but fan working.
found filter took this out still no blowers the heat is there but no blowing
not sure of answer but you pontificating about his problem note really helping is it really he needs help not being criticised and before you say it is a contradiction hes asking for help and if you no a possible anwer why not give it ??????????????
the problem was the aircon was stuck on we unpluged the wire from the aircon and heater now works